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YOUR RESEARCHNot sure that my PSM is working
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Check fuses and all were good
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Hello all! So far I've enjoyed my first two weeks with the 02 C4S but I have had to fix a few little things and there is one last thing I need to figure out. Yesterday I decided to see what the car was like with the PSM turned off. I pushed the button and nothing happened. I then held the button for a few seconds and nothing happened. I thought there was supposed to be a light or something when it was off? The light on the switch does not come on either but I don't know if it is supposed to.
Basically the car never says the PSM is on or off and the switch doesn't seem to do anything at all. Also when I shut the car off for a split second on the dash it says "PSM failure drive to workshop" It flashes on the screen for maybe half a second and that is it.
ABS works as I already had to test that out the other day thanks to a Coyote crossing the road. And overall the car seems to handle fine and I havn't gotten the tires to break free at all so I'm guessing PSM is doing something.
Keep in mind this car has the VF-Engineering supercharger kit on it so I don't know if PSM was disabled somehow when that was done.
Thanks for any help!
You have sand right? Find a place with some sand on the road and lay in the pedal. When my PSM goes on it feels like it cuts power and bogs down until you are on solid ground. This only happens during DE's for me. Crazy driving is for the track.
Did I do good Ed?
Ok I will see if I can find a sandy road but it still raises the question of why when I push the PSM off button nothing happens at all? No light on dash or switch.
Good point. If the lite doesn't come on then I think its time to take to a mechanic. Like you say....the supercharger might have something to do with it.
I don't think a standard OBD reader is going to show a PSM fault. The default on the PSM is on, the button turn it off and both the switch light and the light on the dash come on. It could be a bad switch. loose wire, etc. etc.
Push the other side of the oval button. Maybe you are pushing the wrong side of the button? Just a guess.
Light will glow and PSM OFF orange light on the dash will also be glowing.
With PSM off you should easily be able to break the rear end free and do a donut on an icy or wet surface.
With PSM on, you'll feel it. PSM takes some of the fun out of driving, but is very very good for safety. I leave it on unless I want to snow drift, or autocross, or slide a corner for fun.
Well I checked the fuses and all were good. I removed the switch and it appears to be working with a multimeter connected but I'm not sure which connections are supposed to get voltage on them. Next time I'm at the dealership I'll have them check it out.
